FLA/EFB/AGM batteries have been dominated the starter battery market for more than one century. Lithium-ion battery is not good at cold-starting and cannot meet the requirements of starting batteries. Sodium-ion starter batteries have excellent low-temperature performance and can deliver 10C cold cranking amps at -18 degrees Celsius. In terms of CCA performance, sodium-ion starter batteries are better than FLA/EFB/AGM starter batteries.
FLA/EFB/AGM starter batteries should strictly avoid over-discharge to prevent irreversible loss on capacity. Whilst Sodium-ion starter batteries are not afraid of over-discharge and even can be discharged to 0V, there is no loss of capacity after recharging. FLA/EFB/AGM starter batteries usually need to be charged every 3 months to keep the performance, whilst sodium-ion starter batteries can extend the maintenance to 12 months.
The abundance of sodium in the earth's crust is 2.3%, ranking sixth among all elements, and it is almost inexhaustible. Sodium is widely found on land and in the ocean in the form of salt and is easy to obtain. Compared with FLA/EFB/AGM starter batteries, sodium-ion starter batteries are 100% eco-friendly. Sodium-ion starter batteries do not contain any heavy metals and are 100% recyclable.
Why and how we designed the innovative and amazing
sodium-ion starter batteries?
Believe it, before you see it.
We believe that sodium-ion starter batteries can challenge the market of FLA/EFB/AGM starter batteries.
Sodium-ion Batteries 101
Sodium-ion battery is a secondary battery that mainly relies on the movement of sodium ions between the positive and negative electrodes to work. It has a similar working principle to lithium-ion batteries, and both are called "rocking chair" batteries.
The main components of sodium-ion batteries are positive electrode, negative electrode, separator, electrolyte and current collector, among which the structure and performance of the positive and negative electrode materials determine the sodium storage performance of the entire battery. The positive and negative electrodes are separated by a separator to prevent short circuits. The electrolyte infiltrates the positive and negative electrodes as a medium for ion flow, and the current collector plays the role of collecting and transmitting electrons. During charging, Na+ escapes from the positive electrode, passes through the separator and embeds into the negative electrode, so that the positive electrode is in a high potential sodium-poor state and the negative electrode is in a low potential sodium-rich state. The discharge process is the opposite. Na+ escapes from the negative electrode and passes through the separator and re-embeds into the positive electrode material, restoring the positive electrode to a sodium-rich state. In order to maintain charge balance, the same number of electrons are transferred through the external circuit during the charge and discharge process, and migrate between the positive and negative electrodes together with Na+, causing oxidation and reduction reactions at the positive and negative electrodes.

The Benefits of Sodium-ion Starter Batteries
Compared with FLA/EFB/AGM starter batteries, sodium-ion starter batteries are a completely eco-friendly new battery chemistry. Sodium-ion starter batteries do not contain any heavy metals or precious metals and can be 100% recycled.
Sodium-ion starter battery is true deep cycle and can be discharged 100% depth of discharge (DOD) or even gets to 0V without being damaged. When the engine stops to work, sodium-ion starter battery can independently power the on-board equipment for a long time, thereby effectively reducing carbon emissions.
Sodium-ion starter battery is integrated with intelligent battery management system (BMS), which achieves an emergency start function, thus ensuring your vehicle can be started smoothly at Anytime. Anywhere. It provides users with unprecedented driving protection.
Sodium-ion starter batteries have a service life of up to 2,000 times and are completely maintenance-free. Their ultra-long service life can significantly reduce the user's installation, replacement and daily use costs.
The Intelligent Battery Management System
The intelligent battery management system (BMS) enables efficient and safe charge/discharge management and monitoring of sodium-ion cells. By ensuring that the sodium-ion cells operate consistently within their permissible temperature, voltage, and current limits, the intelligent BMS not only effectively extends sodium-ion motorcycle battery's service life but also prevents thermal runaway caused by a lack of monitoring and protection.
The built-in intelligent BMS in NAPILION sodium-ion starter batteries features an Emergency Start function. The BMS dynamically monitors the battery's state of charge (SoC) and automatically cut-off output to prevent low SoC, ensuring the NAPILION sodium-ion starter batteries can successfully start vehicles again.

How to monitor, or upgrade your NAPILION sodium-ion starter battery?
Users can download the free NAPILION App from App Store, or Google Play to monitor their NAPILION sodium-ion starter batteries. The NAPILION App can provide battery real-time monitoring, engine emergency start, warning notification, historical log, battery firmware OTA update to users.

Find out your requested sodium-ion starter batteries in our 2026 catalog.
If you cannot find the proper models. Please leave a message to us today to customize your batteries.













